Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, gross carrying value	$ 156,629	$ 156,629
Accumulated Amortization	13,231	6,251
Finite-life intangible assets, net carrying value	143,398	150,378
Indefinite-life intangible assets	351,725	351,725
Gross Carrying Value	508,354	508,354
Net Carrying Value	495,123	502,103
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, gross carrying value	97,400	97,400
Accumulated Amortization	4,329	1,082
Finite-life intangible assets, net carrying value	93,071	96,318
Galapagos operating license
Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, gross carrying value	47,669	47,669
Accumulated Amortization	5,049	4,206
Finite-life intangible assets, net carrying value	42,620	43,463
Other finite-life intangible assets
Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, gross carrying value	11,560	11,560
Accumulated Amortization	3,853	963
Finite-life intangible assets, net carrying value	$ 7,707	$ 10,597

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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